Sink strainer



June17, 1930. E.-K.ROBE T SQN' 1,763,864

SINK STRAINER Filed June 25, 1928 Patented June 17, 1930 UNITED STATESPATENT oFFicE- ELMER K. ROBERTSON, OF LOUISVILLE, KENTUCKY, ASSIGNOR T0STANDARD SANI- TARY MANUFACTURING COMPANY, A CORPORATION OF PENNSYLVANIASINK STRAINER Application filed June 25,

This invention relates to improvements in sub-sinks and sub-sinkstrainers.

An object of this invention is to provide a sink having a sub-sinkprovided with a removable perforated receptacle adapted to fit in thesub-sink for receiving refuse and to permit water to drain therefrom.

Another object of this invention is to provide a removable perforatedreceptacle adapted to fit in the sub-sink that shall be easily removedwhen desired to empty the same of its contents.

A further object of this invention is to provide a perforated receptacleadapted to fit in a sub-sink and a strainer adapted to fit in the bottomof the sub-sink, the strainer being provided with means for supportingthe receptacle and maintaining it in spaced relation thereto.

A still further object of this invention is to provide a sub-sink, areceptacle and a strainer therefor of the above stated character whichshall be simple, durable and elficient and which may be inexpensivelymanufactured.

These and other objects will be apparent to those skilled in the art asthe description progresses. The invention consists in the novel featuresof the construction, combina tion and arrangements of parts as willhereinafter be described.

The single drawing is a vertical sectional view illustrating a sub-sink,a receptacle, a supplementary strainer and valve, a suitable valveoperating means being shown in elevation.

In the drawings, the numeral 11 indicates as an entirety, a sink havinga drain opening 12 in its bottom wall, the said wall inclines in adirection of the opening 12 as indicated at 13, so that the water willreadily pass out of the sink.

A sub-sink consisting of a cylindrical body 14: terminating at its topwith an outwardly flared flange portion 15, the outer surface of theflange portion 15 being inclined and adapted to engage and cooperatewith the inclined portions 13 to form a snug fit. The body 14 isexternally threaded adjacent the flared portion 15 as shown at 16 forco- 1928. Serial No. 288,224.

operating with a threaded nut 17 for fastening the sub-sink in rigidfixed relation with the drain. Any suitable packing or washer 18 may beprovided for forming a water tight joint between the sink and sub-sink.

The sub-sink is provided with inwardly curved walls 19 below thecylindrical body portion l hthe curved walls 19 terminating in a reducednipple portion 20 for engagement with a casing 21 adapted to receive oneend of a valve operating mechanism represented in its entirety by 22. I

An annular shoulder 23 is provided within the sub-sink at the top of theinwardly curved portion 19 for supporting a strainer 24. The strainer 2l'is stamped to form thereon a plurality of V-shaped projections 25, theprojections 25 being adapted to support a perforated receptacle 26. Thereceptacle 26 is provided with a handle 27, rigidly fixed by anysuitable means to the center of its bot tom 28, for removing thereceptacle and replacing the same.

The inwardly curved wall 19 terminates at its lower end in such a manneras to form an annular valve seat 31 for cooperating with the inclinedsurface 32 of a valve 33, the valve 33 being adapted to retain water inthe sinlrwhen in closed position and permit 321$- sage of water from thesink when in open position. Anysuitable means such as 22 may be employedfor actuating the valve 33.

An important advantage of the present invention resides in the simpleconstruction of the sub-sink which is adapted to receive and support thestrainer 24 which in turn is provided with projections 25 stampedtherein for.

supporting the receptacle 26 in spaced relation thereto.

The present construction permits easy re moval of the receptacle 26,strainer 25 and valve 23 for inspection and cleaning and the novelmanner in which the strainer 24: is supported and formed to support thereceptacle 26, renders the provision of such apparatus comparativelycheap to manufacture.

It will be observed that the perforated plate 24 serves as the solesupport for the perfo: rated receptacle 26, thereby doing away with thenecessity for either hanging the receptacle on the upper edge of thesub-sink 1 L orproviding ribs or lugs on the interior of said subsink.The hanging of the receptacle on the upper edge of the sub-sink member1% is objectionable for the obvious reason that the edges of thereceptacle thereby afford a place of lodgment for refuse and theformation of ribs or other elements on the interior of the part 14 isobjectionable for the same reason. By thus supporting the receptacleentirely on the perforated plate, I am enabled to terminate the upperedge of the receptacle be low the entrance-end of the sub-sink and, byflaring the upper edge of the receptacle outwardly as shown, I avoid anyplace of? stoppage for the refuse, thereby providing for com letel Ydrainin the main sink. B

supporting the perforated bottom of the receptacle at a point above thestrainer plate 24, I obviously avoid the expensive and troublesomenecessity for having the perforations in the receptacle register withthe perforations in the plate 24. If the bottom of the receptacle resteddirectly on the plate and the perforations did not register, many of theperforations would necessarily be covered and thus destroy to aconsiderable extent the strainer function of the device.

While I have illustrated and described but one embodiment of theinvention, it Will be apparent to those skilled in the art, that certainchanges, modifications, substitutions, additions, and omissions may bemade in the invention without departing from the spirit and scope of theappended claims.

What I claim as new and desire to secure by Letters Patent is 1. Asub-sink comprising a cylindrical body having an inwardly extendingannular projection, a perforated container and strainer disposed withinthe said body, the annular projection adapted to support the saidstrainer, the said strainer being stamped to form a plurality ofV-shaped projections thereon for supporting the container in spacedrelation thereto. r

2. A sub-sink comprising a cylindrical body having an inwardly extendingannular projection, a perforated container and strain-.

er disposed within the said body, the annular projection adapted tosupport the said strainer, the said strainer being stamped to form aplurality of V-shaped perforated projections thereon for supporting thecontainer.

3. In combination with a sink having a drainage opening, a sub-sinktubular member hung in said opening and provided interiorly, at a pointbelow its top edge, with an upwardly-facing shoulder, a perforated idrainage-plate mounted on said shoulder, and

a perforated drainage receptacle fitting down in said si1b-sink memberand supported entirely upon said perforated plate, means being providedbetween the bottom of the receptacle and said plate for spacing saidbottom at a point above said plate, the top edge of said receptacleterminating below the top edge of the tubular sub-sink member and havingcontact with the interior thereof.

In'testimony whereof, I have hereunto subscribed my name this 18th dayof June, 1928.

ELMER- K. ROBERTSON.

